offer alternative methods for customizing TX broadcast privacy #1056
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Transactions which are first seen being broadcast from a user's node are more likely to be heuristically associated with the node runner personally. To break this heuristic, node runners might choose to broadcast a TX indirectly through alternative channels to disassociate that TX from the bitcoin node. This PR adds two new ways for users to broadcast transactions through electrs: 1. The `pushtx` crate. This initiates a short-lived set of P2P connections which publishes a transaction to random peers resolved from DNS seeds. The most private way to do this is using TOR, hiding the IP address of the sender. 2. A custom script option. This allows users to customize the behavior of electrs broadcasting. It should return a zero status if the broadcast was successful, and emit an error message with a non-zero status otherwise.
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Transactions which are first seen being broadcast from a user's node are more likely to be heuristically associated with the node runner personally. To break this heuristic, node runners might choose to broadcast a TX indirectly through alternative channels to disassociate that TX from the bitcoin node. Unfortunately bitcoind does not offer this option natively (yet).
This PR adds two new ways for users to broadcast transactions submitted to an
electrsserver:The
pushtxcrate. This initiates a short-lived set of P2P connections which publishes a transaction to random peers resolved from DNS seeds. The most private way to do this is using TOR, hiding the IP address of the sender.A custom script option. This allows users to customize the behavior of electrs broadcasting. It should return a zero status if the broadcast was successful, and emit an error message with a non-zero status otherwise.